/**
 * @author : cww
 * @date : 2021/1/7 22:42
 *
 */
public class Facade {
    private SysA sysA = new SysA();
    private SycB sycB = new SycB();
    private SysC sysC = new SysC();
    public void doSomething(){
        sysA.doSomething();
        sycB.doSomething();
        sysC.doSomething();
    }
}
